Weather Averages Barnett, IL

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Weather Averages for
Barnett, IL



Latitude: 39°16'N, Longitude: 89°52'W, Elevation: 192.0 m, Distance: 7.13 km

  Unit Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average temperature
over 30 years
°C 12 -2 0 6 12 17 22 24 23 20 13 6 0
Average high temperature
over 30 years
°C 18 2 5 12 19 24 29 31 30 26 20 12 4
Average low temperature
over 30 years
°C 6 -7 -5 0 6 11 16 18 17 13 7 1 -4
Highest recorded temperature
over 104 years
°C 45 23 27 32 33 37 41 45 43 40 35 28 23
Lowest recorded temperature
over 104 years
°C -30 -30 -30 -24 -8 -3 2 6 3 -3 -10 -20 -28
Average number of days above 27°C
over 30 years
days 44 - - - 0.1 1.5 8.5 15 13 5.6 0.4 - -
Average precipitation
over 30 years
cm 98.6 4.3 4.8 8.9 9.4 11.4 9.1 10.2 8.9 9.1 7.1 7.9 7.9
Average number of days below -1.5°C
over 30 years
days 113 26 23 17 4.7 0.3 - - - 0.2 3.7 14 24
Average number of days below -17.5°C
over 30 years
days 5.7 2.7 1.5 0.1 - - - - - - - - 1.3
Average snowfall
over 30 years
cm 52.3 15.5 12.7 9.1 1.8 - - - - - - 3.0 11.2
Most rain reported in a day
over 106 years
cm 15.7 7.4 5.6 10.2 10.4 7.1 13.5 15.7 12.7 10.2 12.2 10.4 9.7
Most rain reported in a month
over 106 years
cm 147.6 18.3 14.2 22.1 29.2 27.7 27.7 29.5 28.2 31.2 22.6 22.6 20.1
Least rain reported in a month
over 106 years
cm 55.6 - 0.3 0.5 2.8 0.3 0.3 0.8 0.3 - 0.5 0.3 0.3
Heating degree days
over 30 years
days 5251 1190 942 671 322 112 10 2 3 61 288 625 1025
Cooling degree days
over 30 years
days 1217 - - 3 23 91 254 368 301 150 26 1 -
Most snow reported in a month
over 106 years
cm 114.6 64.5 57.1 56.6 21.6 7.6 - - - - 5.1 24.6 64.8